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Représenter l'espace en logique modale : un panorama - IRIT

Représenter l'espace en logique modale : un panorama - IRIT

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sémantique de la <strong>logique</strong> <strong>modale</strong> de l’incid<strong>en</strong>ce :<br />

sémantique des “mondes possibles”<br />

modèle : M =< P o, Li, in, m ><br />

W : < P o, Li ><br />

R : in relation d’incid<strong>en</strong>ce<br />

m valuation : m(P i ) ⊆ P o<br />

m(p i ) ⊆ Li<br />

• M, X |= □ P a ssi ∀x ∈ Li tel que X in x, M, x |= a.<br />

• M, x |= □ d A ssi ∀X ∈ P o tel que X in x, M, X |= A.<br />

• M, X |= ♦ P a ssi ∃x ∈ Li tel que X in x, M, x |= a.<br />

• M, x |= ♦ d A ssi ∃X ∈ P o tel que X in x, M, X |= A.<br />

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